refactor: Fix linter errors

optimus/lib/src/banner.dart

@@ -127,7 +127,7 @@ class OptimusBanner extends StatelessWidget {
               top: spacing100,
               right: spacing100,
               child: OptimusIconButton(
-                onPressed: () => onDismiss,
+                onPressed: onDismiss,
                 icon: const Icon(OptimusIcons.cross_close),
                 size: OptimusWidgetSize.small,
                 variant: OptimusButtonVariant.ghost,

optimus/lib/src/button/base_dropdown_button.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:optimus/optimus.dart';
 import 'package:optimus/src/button/common.dart';
+import 'package:optimus/src/common/gesture_wrapper.dart';
 import 'package:optimus/src/overlay_controller.dart';
 import 'package:optimus/src/typography/presets.dart';
 
@@ -64,6 +65,12 @@ class _BaseDropDownButtonState<T> extends State<BaseDropDownButton<T>>
 
   void _onFocusChanged() => setState(() {});
 
+  void _handleHoverChanged(bool isHovered) =>
+      setState(() => _isHovered = isHovered);
+
+  void _handlePressedChanged(bool isPressed) =>
+      setState(() => _isPressed = isPressed);
+
   bool get _isEnabled => widget.onItemSelected != null;
 
   Color get _textColor => widget.variant.toButtonVariant().foregroundColor(
@@ -106,51 +113,46 @@ class _BaseDropDownButtonState<T> extends State<BaseDropDownButton<T>>
       onHidden: _controller.reverse,
       child: IgnorePointer(
         ignoring: !_isEnabled,
-        child: MouseRegion(
-          onEnter: (_) => setState(() => _isHovered = true),
-          onExit: (_) => setState(() => _isHovered = false),
-          child: GestureDetector(
-            onTap: _node.requestFocus,
-            onTapDown: (_) => setState(() => _isPressed = true),
-            onTapUp: (_) => setState(() => _isPressed = false),
-            onTapCancel: () => setState(() => _isPressed = false),
-            child: Focus(
-              focusNode: _node,
-              child: SizedBox(
-                height: widget.size.value,
-                child: AnimatedContainer(
-                  padding: const EdgeInsets.symmetric(horizontal: spacing200),
-                  key: _selectFieldKey,
-                  decoration: BoxDecoration(
-                    color: _color,
-                    borderRadius: widget.borderRadius,
-                    border: borderColor != null
-                        ? Border.all(color: borderColor, width: 1)
-                        : null,
-                  ),
-                  duration: buttonAnimationDuration,
-                  curve: buttonAnimationCurve,
-                  child: Row(
-                    mainAxisSize: MainAxisSize.min,
-                    children: [
-                      if (child != null)
-                        Padding(
-                          padding: const EdgeInsets.only(right: 12),
-                          child: DefaultTextStyle.merge(
-                            style: _labelStyle,
-                            child: child,
-                          ),
-                        ),
-                      RotationTransition(
-                        turns: _iconTurns,
-                        child: Icon(
-                          OptimusIcons.chevron_down,
-                          size: widget.size.iconSize,
-                          color: _textColor,
+        child: GestureWrapper(
+          onHoverChanged: _handleHoverChanged,
+          onPressedChanged: _handlePressedChanged,
+          onTap: _node.requestFocus,
+          child: Focus(
+            focusNode: _node,
+            child: SizedBox(
+              height: widget.size.value,
+              child: AnimatedContainer(
+                padding: const EdgeInsets.symmetric(horizontal: spacing200),
+                key: _selectFieldKey,
+                decoration: BoxDecoration(
+                  color: _color,
+                  borderRadius: widget.borderRadius,
+                  border: borderColor != null
+                      ? Border.all(color: borderColor, width: 1)
+                      : null,
+                ),
+                duration: buttonAnimationDuration,
+                curve: buttonAnimationCurve,
+                child: Row(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    if (child != null)
+                      Padding(
+                        padding: const EdgeInsets.only(right: 12),
+                        child: DefaultTextStyle.merge(
+                          style: _labelStyle,
+                          child: child,
                         ),
                       ),
-                    ],
-                  ),
+                    RotationTransition(
+                      turns: _iconTurns,
+                      child: Icon(
+                        OptimusIcons.chevron_down,
+                        size: widget.size.iconSize,
+                        color: _textColor,
+                      ),
+                    ),
+                  ],
                 ),
               ),
             ),

optimus/lib/src/button/icon.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:optimus/optimus.dart';
 import 'package:optimus/src/button/common.dart';
+import 'package:optimus/src/common/gesture_wrapper.dart';
 
 /// When you don’t have enough space for regular buttons, or the action is
 /// clear enough, you can use an icon button without text.
@@ -36,9 +37,12 @@ class _OptimusIconButtonState extends State<OptimusIconButton>
   bool _isHovered = false;
   bool _isPressed = false;
 
-  void _onHoverChanged(bool isHovering) =>
+  void _handleHoverChanged(bool isHovering) =>
       setState(() => _isHovered = isHovering);
 
+  void _handlePressedChanged(bool isPressed) =>
+      setState(() => _isPressed = isPressed);
+
   bool get _isEnabled => widget.onPressed != null;
 
   @override
@@ -53,43 +57,38 @@ class _OptimusIconButtonState extends State<OptimusIconButton>
 
     return IgnorePointer(
       ignoring: !isEnabled,
-      child: MouseRegion(
-        onEnter: (_) => _onHoverChanged(true),
-        onExit: (_) => _onHoverChanged(false),
-        child: GestureDetector(
-          onTap: widget.onPressed,
-          onTapDown: (_) => setState(() => _isPressed = true),
-          onTapUp: (_) => setState(() => _isPressed = false),
-          onTapCancel: () => setState(() => _isPressed = false),
-          child: AnimatedContainer(
-            height: widget.size.containerSize,
-            width: widget.size.containerSize,
-            padding: EdgeInsets.zero,
-            decoration: BoxDecoration(
-              color: widget.variant.backgroundColor(
+      child: GestureWrapper(
+        onHoverChanged: _handleHoverChanged,
+        onPressedChanged: _handlePressedChanged,
+        onTap: widget.onPressed,
+        child: AnimatedContainer(
+          height: widget.size.containerSize,
+          width: widget.size.containerSize,
+          padding: EdgeInsets.zero,
+          decoration: BoxDecoration(
+            color: widget.variant.backgroundColor(
+              tokens,
+              isEnabled: _isEnabled,
+              isPressed: _isPressed,
+              isHovered: _isHovered,
+            ),
+            border: borderColor != null
+                ? Border.all(color: borderColor, width: 1)
+                : null,
+            borderRadius: const BorderRadius.all(borderRadius50),
+          ),
+          duration: buttonAnimationDuration,
+          child: IconTheme.merge(
+            data: IconThemeData(
+              color: widget.variant.foregroundColor(
                 tokens,
                 isEnabled: _isEnabled,
                 isPressed: _isPressed,
                 isHovered: _isHovered,
               ),
-              border: borderColor != null
-                  ? Border.all(color: borderColor, width: 1)
-                  : null,
-              borderRadius: const BorderRadius.all(borderRadius50),
-            ),
-            duration: buttonAnimationDuration,
-            child: IconTheme.merge(
-              data: IconThemeData(
-                color: widget.variant.foregroundColor(
-                  tokens,
-                  isEnabled: _isEnabled,
-                  isPressed: _isPressed,
-                  isHovered: _isHovered,
-                ),
-                size: widget.size.iconSize,
-              ),
-              child: widget.icon,
+              size: widget.size.iconSize,
             ),
+            child: widget.icon,
           ),
         ),
       ),

optimus/lib/src/chat/optimus_chat_input.dart

@@ -24,7 +24,7 @@ class _OptimusChatInputState extends State<OptimusChatInput> {
 
   void _handleControllerChanged() => setState(() {});
 
-  void _onTap() {
+  void _handleTap() {
     widget.onSendPressed(_controller.text);
     _controller.clear();
   }
@@ -45,7 +45,7 @@ class _OptimusChatInputState extends State<OptimusChatInput> {
         trailing: OptimusEnabled(
           isEnabled: _isSendEnabled,
           child: GestureDetector(
-            onTap: _onTap,
+            onTap: _handleTap,
             child: const OptimusIcon(
               iconData: OptimusIcons.send_message,
               colorOption: OptimusIconColorOption.basic,

optimus/lib/src/checkbox/checkbox.dart

@@ -111,7 +111,7 @@ class OptimusCheckbox extends StatelessWidget {
     return false;
   }
 
-  void _onTap() {
+  void _handleTap() {
     final newValue = isChecked ?? false;
     onChanged(!newValue);
   }
@@ -122,7 +122,7 @@ class OptimusCheckbox extends StatelessWidget {
         child: GroupWrapper(
           error: error,
           child: GestureDetector(
-            onTap: _onTap,
+            onTap: _handleTap,
             child: Row(
               crossAxisAlignment: CrossAxisAlignment.start,
               mainAxisSize: MainAxisSize.min,
@@ -134,7 +134,7 @@ class OptimusCheckbox extends StatelessWidget {
                     isChecked: isChecked,
                     isEnabled: isEnabled,
                     onChanged: onChanged,
-                    onTap: _onTap,
+                    onTap: _handleTap,
                   ),
                 ),
                 Expanded(

optimus/lib/src/checkbox/checkbox_group.dart

@@ -45,7 +45,7 @@ class OptimusCheckboxGroup<T> extends StatelessWidget {
   /// Controls whether the whole group is enabled.
   final bool isEnabled;
 
-  void _onChanged(OptimusGroupItem<T> v, bool checked) {
+  void _handleChanged(OptimusGroupItem<T> v, bool checked) {
     if (checked) {
       _values.add(v.value);
     } else {
@@ -69,7 +69,7 @@ class OptimusCheckboxGroup<T> extends StatelessWidget {
                     size: size,
                     label: v.label,
                     isEnabled: isEnabled,
-                    onChanged: (checked) => _onChanged(v, checked),
+                    onChanged: (checked) => _handleChanged(v, checked),
                   ),
                 )
                 .toList(),

optimus/lib/src/checkbox/checkbox_tick.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/widgets.dart';
 import 'package:optimus/optimus_icons.dart';
 import 'package:optimus/src/border_radius.dart';
+import 'package:optimus/src/common/gesture_wrapper.dart';
 import 'package:optimus/src/theme/theme.dart';
 
 class CheckboxTick extends StatefulWidget {
@@ -25,47 +26,45 @@ class CheckboxTick extends StatefulWidget {
 
 class _CheckboxTickState extends State<CheckboxTick> with ThemeGetter {
   bool _isHovering = false;
-  bool _isTappedDown = false;
+  bool _isPressed = false;
 
   _TickState get _state => widget.isChecked.toState;
 
   _InteractionState get _interactionState {
     if (!widget.isEnabled) return _InteractionState.disabled;
-    if (_isTappedDown) return _InteractionState.active;
+    if (_isPressed) return _InteractionState.active;
     if (_isHovering) return _InteractionState.hover;
 
     return _InteractionState.basic;
   }
 
-  void _onHoverChanged(bool hovered) => setState(() => _isHovering = hovered);
+  void _handleHoverChanged(bool hovered) =>
+      setState(() => _isHovering = hovered);
+
+  void _handlePressedChanged(bool pressed) =>
+      setState(() => _isPressed = pressed);
 
   Color get _borderColor => widget.isError
       ? theme.tokens.backgroundInteractiveDangerDefault
       : _interactionState.borderColor(context);
 
   @override
-  Widget build(BuildContext context) => GestureDetector(
+  Widget build(BuildContext context) => GestureWrapper(
+        onHoverChanged: _handleHoverChanged,
+        onPressedChanged: _handlePressedChanged,
         onTap: widget.onTap,
-        onTapDown: (_) => setState(() => _isTappedDown = true),
-        onTapUp: (_) => setState(() => _isTappedDown = false),
-        onTapCancel: () => setState(() => _isTappedDown = false),
-        child: MouseRegion(
-          onEnter: (_) => _onHoverChanged(true),
-          onExit: (_) => _onHoverChanged(false),
-          child: AnimatedContainer(
-            duration: const Duration(milliseconds: 100),
-            decoration: BoxDecoration(
-              color: _interactionState.fillColor(context, _state),
-              border: _state.isUnchecked
-                  ? Border.all(color: _borderColor, width: 1.5)
-                  : null,
-              borderRadius: const BorderRadius.all(borderRadius25),
-            ),
-            width: 16,
-            height: 16,
-            child:
-                _CheckboxIcon(icon: _state.icon, isEnabled: widget.isEnabled),
+        child: AnimatedContainer(
+          duration: const Duration(milliseconds: 100),
+          decoration: BoxDecoration(
+            color: _interactionState.fillColor(context, _state),
+            border: _state.isUnchecked
+                ? Border.all(color: _borderColor, width: 1.5)
+                : null,
+            borderRadius: const BorderRadius.all(borderRadius25),
           ),
+          width: 16,
+          height: 16,
+          child: _CheckboxIcon(icon: _state.icon, isEnabled: widget.isEnabled),
         ),
       );
 }